Philip montgomery



Dec. 19, 1922. 1,439,433.

P. MONTGOMERY.

SHOCK ABSORBER.

FILED APR. 12, 1919.

INVENTOR.

A TORNEY.

Patent-ee it?, lfilfd.

UNlTlD STATES PATENT Ofili'lh..

PHILIP MONTGOMERY, OF HARTFORD, CONNECTICUT.

SHOCK ABSORBER.

Application filed April 12, 1919. Serial No. 289,727.

To all fie/0m it may conce/rfa.

Be it known that l, PHnnr MONTGOMERY, a citizen of the United States, residing` in Hartford, in the county of Hartford and State of Connecticut, have invented a new and Improved Shock Absorber, of which the following is a specification.

My invention relates to the class of devices for preventing excessive movement of the body of a vehicle with respect to the axles or wheels, and an object of 'my invention, among others, is to provide a device of this class that shall be very durable and that shall be extremely effective in the results obtained in its operation.

One form ofabsorber embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the accompanying drawings, in which- FiOure l is a view in side elevation of a portion of the frame of a vehicle and in cross section through an axle housing equipped with my improved shock absorber, the cover lof the case of which is removed.

Figure 2 is a view in central section through my improved shock absorber.

Figure 3 is a view in section on plane denoted by dotted line 3 3 of Figure l.

Thile 'my invention is illustrated and described herein as applied to a vehicle it will befound equally applicaliile for preventing` shock between the reciprocating members of any device.

In the accompanying drawings the nuineral 5 indicates a part of a side rail of the frame of a vehicle and G the axle hous-` ing (shown in section) between which parts it will be understood the springs are arranged in any desired manner, supported upon the axle housing and supporting the frame.

`'rf/ly improved shock absorber is shown herein as attached to both of said parts and it may be euilployed in such numbers and in such positions may be desired.v It consists of a case 7 having;` suitable means,

as ears 8 for attaching` it in place as bymeaus of screws or bolts, and a cover i) is secured in place in any suitable manner to close a chamber in the case. An opening l0 extends through a wall of this chamber, in the structure shown herein this opening being in the cover 9.

Cylinders 1l are formed within the case to receive pistons or resistance members l2 rangement, that herein shown, comprises a wall 13 formed on the arc of a circle to corrrespond with the shape of the wall of the circular case, thus forming,` the cylinders on curves extending` lengthwise thereof. shaft or actuating` member le extends through the opening l0 and supports the pistons 12 that conform to the circular shape of the cylinders, the arc of which has the axis of said shaft for a center. in arm l5 is secured to the shaft outside of the case, the end of the arm away from the ease ing pivotally attached to a link 1,6 that is pivotally connected to the housingv 'lhe wall lis located at some distance from the opening l() and coirsequently the cylinders ll are spaced from said opening. rillris constitutes an important feature of-my invention, as all material pressures are conw fined within the cylinders and the latter being)` spaced from the opening 10 no pressure is transmitted to liquid at said openingand consecniently little if any packing is required around the shaft le to prevent escape of liquid from the case. rilherefore, there is no danger of the device becomingl in operative by reason of a lowering of the liquid within the case.

lt will be understood that a liquid, as oil, will be used in the case, as is common in devices of this class, to oppose Lrnwement of the pistons, and it will be noted that the arrangement isy such that the case need not be full of lirpiid to he effectively operative, as the device will operate so longa as there is liquid enough to lill the cylinders. The pistons are preferably enlarged at their ends, as shown in Figures l and il of the drawings.

The device is arranged to prevent excessive movement only` as between ihn frame and axle housing; or wheels, aud to resist auch movement in proimrtiou to the amount thereof, the greater thc c," resal of moreine'nt the greater the resistance. 'llo this end the pistons are located normally outside oi" the cylinders and are permitted some de` grec of movement before ente fing the cylinders, thereby permitti the full effect of the flexibility of the spi mpi.' to be obtained during the minor movements thereof. This feature is extended by forming); relief openings 17 through the wall l?. `from each of the cylinders into the main chamber in the curo, thi

t? ,e :,i., A1, Y ol movclnl; .t ci pieton@ luto the :y :i dere by reu/een ot exceeeb'c mollet/nent or the e, und ilrunfie, the greater will be the resistance to euch movement.

lt is eeeentiel that the resistance to seperetion olf the uid-e und vehicle treme be greater 'in the reeietatnce to nioveincnt oit Suid perte in the opposite direction ne it ie ini/'hiiubly the eeperuting movement that cauces breehing ot the soringe. This muy be obtained in diili'erent Ways, es herein Shown i port 18 being provided through the dividing Well 19 between the cylinders with u valve Q0 to govern this port und so located und operating to open und peru'iit l' W et liquid betvWw-in the cylinders when ironic und utiles :ipprouch ouch other und to prevent euch flow 'l thereby incr-euse the re- ,L eietuncc to moven'ient ot the platone when the tre-me :uid oidos more in. un oiu'iofsite direction.

regulating port ill. is :ilse ilmfmed through tbc Well i9, und the eik/:e ol" the '1.8 und 2l. ere reguleted es by means eine extending through the cese into the ports es shown in Figure 3 ol the drawings. ineens of tieec screws the rute of flow ot liquid from one oi the pistons to the other muy be eo regulated us to govern the movement of the pistone ziccording to the conditions that muy be imposed es to Weight or otherwise..

ln accordance with the provisions of the potent statutes, l heve described the fjrinciples ot operation of my invention, together with the device Which l new consider to represent the beet embodiment thereof; but l. desire to have it understood that the device shown is only illustrative, und that the invention may be carried out by other ineens.

l. A. crise including :i chamber to contiin o liquid, u reeietence member nio'vzibly mounted in Seid chamber end arranged to have its movement opposed by seid liquid, un actuating member connected to the rc sistunce member and extending through und movable in un opening into uuid chamber, und lucene to prevent trenemission -to Suid opening' o1? the bressuire ot the liquid cuueed. by movement ot efiid reels; nice member.

mec to fontein :i :11` con'ipurlment the vmovubly hlo'liuted wat Yiu :seid compertuleut :md :u 'rungcd to have it,L mwciueutopposed by seid liquid, en eict'uut. member connected to the resistance member und extending through und movable in. on o ggiening into Seid (.fompertmeut, und ineens, Within the case to prevent transmission to seid opening ci the pressure of the liquid caused by movement ol seid resistance member.

3. i cese containing cylinder hemd und luivm wie, :i rernrntmice men'ibzf-.r

15erein und luwing en opening through its well sequestered from Suid cylinder, liquid in all perte ot said euse, e piston located within the cylinder', und e member connected to seid pieton und extending through seid opening.

1l. A case to contain e liquid and having on opening through its Well, u cylinder loceted within the ceee und Separated trom ,uid opening, e member rotatably mounted in the case end projecting through an opening iu the Well "tlie'ieot,r e. piston securedto eziid member und adopted to project into :duid cylinder.

5. ll. cese to contain uliquid und having en opening through its Woll, cylinders oppoeitely disposed Within the cese, the Wall of the cylinders being spaced from seid opening, u member rotatably mounted in the cuec und projecting through un opening in the 'well thcreoil", pistone :supported by .eu/id immibcr und :id-opted to be projected into :seid cylinders. i

(3. ll. cese to contein u liquid Aand having en opening through ite well, :l cylinder located Within the case und spaced Jrom seid opening, u port through the Well olf the cylinder to pe it itloiv ot liquid therefrom, e. member iuovebly mounted in the cese and projecting through en opening in the Wall thereof, a pieton support-ed by vSuid meinber und adapted to be projected into seid cylinder.

7. Il. cese to contain. e liquid und having un ogiening 'through its Well, e cylinder l0- cuted with n the cabe und spaced from Suid oefening, e port opening through the Woll o Seid cylinder, means Jor regulating the size oi' Seid port, :i member movebly mountc 'l "-.vithin the cese und projecting through un o'. ching n the 'Wall thereof, a piston Suprtcd by seid member und udzipted to be z-loyected into Seid cylinder.

5. i. un opening in iter Well, a. cylinder formed on the ere ot u circle Within the case and ejeced from seid opening, openings disposed lengthwise of the cylinder through its welle, member rotatably mounted in the use und projecting through an opening in the woll thereof, e. piston :termed on the are of u. circle und eupporteil by seid menfiber :ind :ulzufited to be projected into field cylinoer.

D. il., cuee lo contain n. liquid :md buying :iu opening tbereinto, cylindere located in seid cene und spaced from opening, Sayid c) indere opening in opposait() direct-loir". :i member rotzrtebly mounted in Suid opening, plete .e fuuriported by Seid member und ein tending in opposite directions into positions to enter seid cylinders, und ineens 'lor corr trolling flow of lluid between seid cylinders. 

